Please consider attending the following: MATERIALS ENGINEERING SEMINAR "Investigation into the Role of Oxidation on Static Fatigue Behavior of Siliconized Silicon Carbide" By Gregory C. Scofield Purdue MSE Ph.D. Preliminary Exam Advisors: Professor Kenneth Sandhage and Professor Michael Sangid ABSTRACT Silicon carbide based ceramics matrix composites (CMCs) seek to replace nickel superalloys in gas turbine components due to their comparatively low density and high strength at elevated temperatures, however, the introduction of these new composite materials can only be achieved after failure mechanisms are properly understood. Harsh combustion environments are known to decrease fatigue life of these composite materials, though the effect of oxidation on mechanical properties is still not fully understood, leading to unpredictable failure of components. A review of the current literature relating to static fatigue of siliconized silicon carbide is presented with emphasis given to oxidation mechanisms within the composite system. Gaps within literature are addressed and a plan for continued research into the effects of oxidation on static fatigue behavior in siliconized silicon carbide is proposed. Date: Wednesday, November 28, 2018 Time: 2:00 P.M. Place: HAMP 1252 School of Materials Engineering Purdue University Neil Armstrong Hall of Engineering 701 West Stadium Ave. Room 2200 West Lafayette, IN 47907 765-494-4105